mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-10-22 17:07:33 +00:00
68 lines
1.7 KiB
Go
68 lines
1.7 KiB
Go
|
// Copyright (c) 2017 Couchbase, Inc.
|
||
|
//
|
||
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
// you may not use this file except in compliance with the License.
|
||
|
// You may obtain a copy of the License at
|
||
|
//
|
||
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
//
|
||
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
// See the License for the specific language governing permissions and
|
||
|
// limitations under the License.
|
||
|
|
||
|
package scorch
|
||
|
|
||
|
import (
|
||
|
"bytes"
|
||
|
|
||
|
"github.com/RoaringBitmap/roaring"
|
||
|
"github.com/blevesearch/bleve/index"
|
||
|
)
|
||
|
|
||
|
type IndexSnapshotDocIDReader struct {
|
||
|
snapshot *IndexSnapshot
|
||
|
iterators []roaring.IntIterable
|
||
|
segmentOffset int
|
||
|
}
|
||
|
|
||
|
func (i *IndexSnapshotDocIDReader) Next() (index.IndexInternalID, error) {
|
||
|
for i.segmentOffset < len(i.iterators) {
|
||
|
if !i.iterators[i.segmentOffset].HasNext() {
|
||
|
i.segmentOffset++
|
||
|
continue
|
||
|
}
|
||
|
next := i.iterators[i.segmentOffset].Next()
|
||
|
// make segment number into global number by adding offset
|
||
|
globalOffset := i.snapshot.offsets[i.segmentOffset]
|
||
|
return docNumberToBytes(nil, uint64(next)+globalOffset), nil
|
||
|
}
|
||
|
return nil, nil
|
||
|
}
|
||
|
|
||
|
func (i *IndexSnapshotDocIDReader) Advance(ID index.IndexInternalID) (index.IndexInternalID, error) {
|
||
|
// FIXME do something better
|
||
|
next, err := i.Next()
|
||
|
if err != nil {
|
||
|
return nil, err
|
||
|
}
|
||
|
if next == nil {
|
||
|
return nil, nil
|
||
|
}
|
||
|
for bytes.Compare(next, ID) < 0 {
|
||
|
next, err = i.Next()
|
||
|
if err != nil {
|
||
|
return nil, err
|
||
|
}
|
||
|
if next == nil {
|
||
|
break
|
||
|
}
|
||
|
}
|
||
|
return next, nil
|
||
|
}
|
||
|
|
||
|
func (i *IndexSnapshotDocIDReader) Close() error {
|
||
|
return nil
|
||
|
}
|